From patchwork Wed Feb 16 09:01:14 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishwanath BS X-Patchwork-Id: 157 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:40:24 -0000 Delivered-To: patches@linaro.org Received: by 10.146.25.23 with SMTP id 23cs5693yay; Wed, 16 Feb 2011 00:58:17 -0800 (PST) Received: by 10.150.192.19 with SMTP id p19mr412034ybf.156.1297846696697; Wed, 16 Feb 2011 00:58:16 -0800 (PST) Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by mx.google.com with ESMTPS id w3si9847929ybi.45.2011.02.16.00.58.16 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 16 Feb 2011 00:58:16 -0800 (PST) Received-SPF: pass (google.com: domain of vishwanath.bs@ti.com designates 198.47.26.152 as permitted sender) client-ip=198.47.26.152; Authentication-Results: mx.google.com; spf=pass (google.com: domain of vishwanath.bs@ti.com designates 198.47.26.152 as permitted sender) smtp.mail=vishwanath.bs@ti.com Received: from dbdp31.itg.ti.com ([172.24.170.98]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id p1G8wD4Y028664 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 16 Feb 2011 02:58:15 -0600 Received: from localhost.localdomain (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p1G8wA8b018858; Wed, 16 Feb 2011 14:28:12 +0530 (IST) From: Vishwanath BS To: linux-omap@vger.kernel.org Cc: patches@linaro.org, Vishwanath BS Subject: [PATCH 3/3] OMAP36xx PM: Updated C state latencies for OMAP3630 Date: Wed, 16 Feb 2011 14:31:14 +0530 Message-Id: <1297846874-18286-4-git-send-email-vishwanath.bs@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1297846874-18286-1-git-send-email-vishwanath.bs@ti.com> References: <1297846874-18286-1-git-send-email-vishwanath.bs@ti.com> This patch has changes to update the C state latencies for OMAP3630 and disables the useless C-States, keeping only the optimized ones with their corresponding measured latencies. Only 4 C-states are kept instead of 7 C-States: * C1 . MPU WFI clock gated + Core autogating * C3 . MPU CSWR + Core inactive * C5 . MPU CSWR + Core CSWR * C7 . MPU OFF + Core OFF Thanks to Nicole Chaloub and Vincent Bour for their investigation. Tested on ZOOM3 board using latest pm branch. Signed-off-by: Vishwanath BS --- arch/arm/mach-omap2/board-3630sdp.c | 19 +++++++++++++++++++ arch/arm/mach-omap2/board-zoom.c | 19 +++++++++++++++++++ 2 files changed, 38 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c index 6264564..8d05fc9 --- a/arch/arm/mach-omap2/board-3630sdp.c +++ b/arch/arm/mach-omap2/board-3630sdp.c @@ -25,6 +25,24 @@ #include "board-flash.h" #include "mux.h" #include "sdram-hynix-h8mbx00u0mer-0em.h" +#include "pm.h" + +static struct cpuidle_params omap36xx_cpuidle_params_table[] = { + /* C1 */ + {1, 74, 78, 152}, + /* C2 */ + {0, 165, 90, 255}, + /* C3 */ + {1, 163, 180, 345}, + /* C4 */ + {0, 2852, 605, 3457}, + /* C5 */ + {1, 800, 366, 2120}, + /* C6 */ + {0, 4080, 801, 4881}, + /* C7 */ + {1, 4300, 8794, 159000}, +}; #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) @@ -212,6 +230,7 @@ static void __init omap_sdp_init(void) board_flash_init(sdp_flash_partitions, chip_sel_sdp); enable_board_wakeup_source(); usb_ehci_init(&ehci_pdata); + omap3_pm_init_cpuidle(omap36xx_cpuidle_params_table); } MACHINE_START(OMAP_3630SDP, "OMAP 3630SDP board") diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c index e26754c..6bd364a --- a/arch/arm/mach-omap2/board-zoom.c +++ b/arch/arm/mach-omap2/board-zoom.c @@ -30,6 +30,24 @@ #include "mux.h" #include "sdram-micron-mt46h32m32lf-6.h" #include "sdram-hynix-h8mbx00u0mer-0em.h" +#include "pm.h" + +static struct cpuidle_params omap36xx_cpuidle_params_table[] = { + /* C1 */ + {1, 74, 78, 152}, + /* C2 */ + {0, 165, 90, 255}, + /* C3 */ + {1, 163, 180, 345}, + /* C4 */ + {0, 2852, 605, 3457}, + /* C5 */ + {1, 800, 366, 2120}, + /* C6 */ + {0, 4080, 801, 4881}, + /* C7 */ + {1, 4300, 8794, 159000}, +}; #define ZOOM3_EHCI_RESET_GPIO 64 @@ -126,6 +144,7 @@ static void __init omap_zoom_init(void) usb_ehci_init(&ehci_pdata); } + omap3_pm_init_cpuidle(omap36xx_cpuidle_params_table); board_nand_init(zoom_nand_partitions, ARRAY_SIZE(zoom_nand_partitions), ZOOM_NAND_CS); zoom_debugboard_init();